PLEASE HELP! MIDDLE SCHOOL MATH! The dot plot below shows the number of baskets made by Elena over 12 practice sessions. What is the mean absolute deviation (MAD) for Elena's data? (The mean is marked by the red triangle)

Answer:

A. 3/25

Step-by-step explanation:

From Marco: p(green marble) = 3/10

From Kira: p(blue) = 6/15 = 2/5

p(green marble & blue) = 3/10 * 2/5 = 6/50 = 3/25

Answer:

2 x 3.14 x 13 = 81.64 m is your circumference

13^2 x 3.14

169 x 3.14 = 530.66 m^2 is your area

Answer:

Phoebe has £180, Andy has £60, and Polly has £30.

Step-by-step explanation:

Ok, to start of let's establish some variables! We'll give Phoebe the variable "p", Andy the variable "a", and Polly the variable "o". By giving each person a variable we can create an equation and solve for it!

So, what do we know?

Well we know the following information...

p + a + o = 270

(Phoebe + Andy + Polly = £270)

p = 3a

(Phoebe = 3 times more than Andy)

a = 2o

(Andy = 2 times more than Polly)

To be able to solve this equation we have to solve for just one variable first.The only one we can use is "o" for Polly!

3(2o) + 2o + o = 270

6o + 2o + o = 270 (Distribute 3 to get like terms)

9o = 270 (Combine like terms [6+2+1])

o = 30 (Divide by 9 on both sides to get "o" by itself)

Now that we have how much Polly has, we have to solve for Andy and Phoebe. (To do this we will input our value, 30, where our variable is "o")

Andy

a = 2(30) (Input term)

a = 60 (Multiply by 2 to get final answer)

(Since we now know what Andy has we can input 60 into our "a" variable to solve for Phoebe)

Phoebe

p = 3(60) (Input term)

p = 180 (Multiply by 3 to get final answer)

Now! Just to check we are going to input our variables into our original equation to be sure we have the right variables.

p + a + o = 270

180 + 60 + 30 = 270!!

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

Answer:

D

Step-by-step explanation:

Answer:

Option D; 3, 7, 9 and 21

Step-by-step explanation:

63/3 = 21

63/7 = 9

63/9 = 7

63/21 = 3

Hope this helps!

Answer:

(1, 3)

Step-by-step explanation:

Given the expression

x+y = 4 ... 1

y = 2x+1 ....2

Substitute equation 2 into 1

x + (2x+1) = 4

3x + 1 = 4

3x = 4-1

x = 3/3

x = 1

Since y = 2x + 1

y = 2(1) + 1

y = 3

Hence the solution to the equation is (1,3). This means that the coordinate point on the graph where both lines intersect will be at (1, 3)

Answer:

y= 1,300

c= 326.67

Step-by-step explanation:

Answer:

7/2

Step-by-step explanation:

Answer:

ano po. ibig sabihin niyan

Answer:

C  (n - 15 = 4)

Step-by-step explanation:

This is the answer becuase it can be rewritten as:

n - 4 = 15 (by subtracting 4 from both sides and adding 15 to both sides);

this equation describes the "written" (verbal) equation.

Answer:

57

Step-by-step explanation:

7 times 7 or 7 to the power of 2 is 49 plus 7 is 56 and then plus 1 makes that 57

Answer:

57

Step-by-step explanation:

n^2+n+1 (n=7)

7^2+n+1

49+7+1

49+8

57

Answer:

y = -5x - 10

Step-by-step explanation:

-8-2          -10

____    =   ___   =     -5

3 - 1           2

Answer:

Step-by-step explanation:

Find the slope:

Use the point (1, 2) and find the equation:

Answer:

A) The total length of each edging in her scale drawing would be 19.2 centimeters.

B) Square or rectangle

C) angle  α= 53.13 degrees

angle β=  36.87 degrees

height=  32 inches

base= 24 inches

hypotenuse 40 inches.

Step-by-step explanation:

Part A:

If the roll edging is 96 inches long and the scale chosen is

5inches = 1 cm

96inches /5= 19.2cm

The total length of each edging in her scale drawing would be 19.2 centimeters.

Part B:

The quadrilaterals such rectangle square right  trapezoid have a pair of 90 degrees angles.

If we choose a square shape then all sides must be equal. And we have a length of 19.2 centimeters.

Dividing 19.2 by 4  gives 4.8 cm for each side.

Figure A  shows a square and has 4 sides equal and 4 right angles.

If we choose a rectangle shape then 2 sides must be equal. We have a length of 19.2 centimeters.

Suppose the length is 2 times more than the width

which will give the dimensions as

2*2 x+ 2x= 6x   ( length and width denoted by x)

Dividing 19.2 by 6  gives 3.2 cm for each width and  6.4 for the lengths.

Figure B shows a rectangle  and has 2 sides equal and 4 right angles.

It depends on which quadrilateral you wish to choose.

Part C:

Using Pythagorus theorem if the base and altitude are given then the hypotenuse can be found out using the following formula.

c²= a² +b²

c²= 6.4² +4.8²

c²= 40.96+23.04= 64

c= √64 = 8

The third side must be equal to 8 centimeters.

Using the formula

Cos α= base / hypotenuse

Cos α=4.8/8

α= Cos (inverse) 4.8/8

α= Cos (inverse) 0.6

α= 53.13 degrees

So angle α= 53.13 degrees

All the angles in the triangle must be 180 degrees.

α + β +  90°= 180°

And angle β= 180-90-53.13= 36.869= 36.87 degrees

The actual dimensions of this triangle are

height= a= 6.4* 5= 32 inches

base= b= 4.8*5= 24 inches

hypotenuse= 8*5= 40 inches.

Answer:  x= 1/7 y + -3/7

Step-by-step explanation:

y=7x+3

Step 1: Flip the equation.

7x+3=y

Step 2: Add -3 to both sides.

7x+3+(−3)=y+(−3)

7x=y−3

Step 3: Divide both sides by 7.

Answer:

$800 total paid for four loins. Everyone gets one ribeye so price of steak per person is four dollars.

Step-by-step explanation:

1 ribeye per person -> 50 ribeyes per loin -> 200 (people going)/50 (people fed per loin) = 4 (loins needed) -> $200.00 x 4 loins = $800 of loin total and 4 dollars per ribeye (1 ribeye per person)

Answer:

Cone will be created by rotating the triangle about the y-axis.

Step-by-step explanation:

If the given triangle is rotated about the y-axis, 3-D image formed will be a cone,

Radius of the circular base of the cone = 3 units

Height of the cone = 4 units

answer:

1/433 (decimal: 0.002309)

step-by-step explanation:

5/2,165

= 1/433

to change 1/433 to decimal we'll divide the numerator by the denominator-

1÷433

=0.00230946882

so we're going to round to the ten-millionths place

5 or more raise the floor, 5 or less let it rest

4>5

so 0.002309

good luck :)

i hope this helps

brainliest would be highly appreciated

have a nice day!

Answer:

A) Yes you are totally safe

Step-by-step explanation:

The function that models the height of the curved arch in feet, f(x) = -0.0009·x² + 1.24·x + 1.65

The height of the platform = 2 feet + The maximum height of the arch

The amount of stretch of the bungee before retracting = 420 feet

The vertex of the parabola is the point x = (-b/2·a), from which we get;

At the maximum height of the arch, x = -1.24/(2 × -0.0009) = 6,200/9 =  688.[tex]\overline 8[/tex]

The maximum height of the arch = f(688.[tex]\overline 8[/tex]), therefore, we have;

f(688.[tex]\overline 8[/tex]) = -0.0009×(688.[tex]\overline 8[/tex])² + 1.24 × (688.[tex]\overline 8[/tex]) + 1.65 = 428.76[tex]\overline 1[/tex]

The maximum height of the arch = 428.76[tex]\overline 1[/tex] feet

The height of the platform above the ground = 2 ft. + 428.76[tex]\overline 1[/tex] ft. = 430.76[tex]\overline 1[/tex] ft.

Therefore;

The height of the platform above the ground = 430.76[tex]\overline 1[/tex] feet > The amount the bungee will stretch before retracting = 420 ft.

430.76[tex]\overline 1[/tex] ft, > 420 ft.

Therefore, the jumper is totally safe.

Answer:

c is the answer becoz Evey angle make 180 degree and as 6 is used

Answer: The correct answer is C

-1/4r+6p

Step-by-step explanation:

Answer:

20x-3y

Step-by-step explanation:

combine the like terms

so first do 10x-2x=8x

then you're gonna add from the line the 10x and the 2x which is going to give you 20x

no finally you are left with one number with the y variable, that is 3y.

Therefore your answer is 20x-3y

Answer:

A) 0 (no solutions)

Step-by-step explanation:

Solve the equation:

3x - 10(x+2) = 13 - 7x

3x - 10x -20 = 13 - 7x

-7x - 20 = 13 - 7x

-20 = 13

Since both sides are clearly not equal to each other, no solution can satisfy both sides to be equal to each other. So A is correct.

Answer:

It would be 0

Step-by-step explanation:

because its -7x+20=13-7x which in the end would 20=13

Answer:

41.16 m³

Step-by-step explanation:

Volume = area triangle x height

1/2(2.8x4.2) = 1/2( 11.76) = 5.88

5.88 x 7 = 41.16

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

11q

Step-by-step explanation:

Answer:

8 + 20q

Step-by-step explanation:

4 * 2 = 8

4 * 5q = 20q

8 + 20q

Answer:

19%

Step-by-step explanation:

40/50 = x/100

solve for x

x is equal to 20%

but out of the answer choices it's 19%.

Answer: 19%

Step-by-step explanation:

50, percentage decreased by 60% (percent) of its value = 20

50, percentage decreased by 80% (percent) of its value = 10

50, percentage decreased by 19% (percent) of its value = 40.5

50, percentage decreased by 40% (percent) of its value = 30

Hence, the answer is 19%